Add frontend assets and plugin bundles

Add the legacy frontend themes, scripts, and plugin assets required by the main SPOTA interfaces.

assets/plugins/bootstrap-datetimepicker/tests/suites/keyboard_navigation/all.js

@@ -0,0 +1,26 @@
+module('Keyboard Navigation (All)', {
+    setup: function(){
+        this.input = $('<input type="text">')
+                        .appendTo('#qunit-fixture')
+                        .datetimepicker({format: "dd-mm-yyyy"})
+                        .focus(); // Activate for visibility checks
+        this.dp = this.input.data('datetimepicker')
+        this.picker = this.dp.picker;
+    },
+    teardown: function(){
+        this.picker.remove();
+    }
+});
+
+test('TAB hides picker', function(){
+    var target;
+
+    ok(this.picker.is(':visible'), 'Picker is visible');
+
+    this.input.trigger({
+        type: 'keydown',
+        keyCode: 9
+    });
+
+    ok(this.picker.is(':not(:visible)'), 'Picker is hidden');
+});